Following announcements from Walmart, Radioshack and others, T-Mobile is the latest to announce availability of Apple’s recently unveiled iPhone 5s and iPhone 5c. We already know the two devices will be landing on all of Apple’s major US carrier partners (as well as in a handful of other countries on Sept. 20, and T-Mobile confirmed today it will be kicking off preorders for the 5c on September 13, the preorder date previously announced by Apple. The real news here is that T-Mobile’s new Uncarrier plans mean that the iPhone 5c will sell for $0 down with the $528 price tag paid through 24 monthly installments of $22. It will also offer the iPhone 5s for $99 down and 24 monthly payments of $22.91 to make up the $649 retail price.

As a reminder, Apple and most of its partner will sell the new iPhone 5s for $199 on contract and the new iPhone 5c for $99 on contract (for the 16GB models). T-Mobile’s full retail price works about to around the same as Apple’s, but it’s 5c price is a little lower than the $549 Apple is listing. That doesn’t mean we won’t see lower prices on the device at launch. Walmart already announced that it will soon begin accepting preorders for the 5c at $79 on contract and the 5s at $189.

Apple’s new iPhones will also become available in Australia, China, Canada, Germany, France, Singapore, the UK, and Japan later this month on September 20.